外汇杠杆是指外汇交易中的一种金融工具，允许交易者以相对较小的资本投入进行更大规模的交易。外汇杠杆能够放大交易者的盈利和亏损，提供了更灵活的策略选择。
外汇交易中，杠杆比例可以理解为交易资金的放大倍数。例如，如果某个外汇交易平台提供的杠杆比例为100:1，那么意味着交易者只需要投入1美元的资金，就可以进行100美元的交易。这种机制能够给予交易者相对较小的资本投入进行更大规模的交易，从而有机会获得更高的盈利。
The foreign exchange leverage, also known as forex leverage, is a financial tool in foreign exchange trading that allows traders to conduct larger scale trades with relatively small capital input. Forex leverage amplifies both the profits and losses of traders, providing greater flexibility in trading strategies.
Forex leverage can be understood as a magnification factor for trading capital in forex trading. For example, if a forex trading platform offers a leverage ratio of 100:1, it means that a trader only needs to invest 1 dollar to conduct a 100-dollar trade. This mechanism allows traders to engage in larger scale trades with relatively small capital, potentially leading to higher profits.
